Home / 26,784.35-40,172.66-18,754.76

Finding the Fourth Proportional to 26,784.35, 40,172.66 and 18,754.76

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Solution

The fourth proportional to 26,784.35, 40,172.66 and 18,754.76 is: 28,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,784.35 : 40,172.66 = 18,754.76 : x
  2. Step 2: Convert to fraction form
    26,784.35/40,172.66 = 18,754.76/x
  3. Step 3: Cross multiply
    26,784.35x = 40,172.66 × 18,754.76
  4. Step 4: Simplify right side
    26,784.35x = 753,428,503.09
  5. Step 5: Solve for x
    x = 753,428,503.09/26,784.35
  6. Step 6: Final answer
    x = 28,129.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.